Finding the Fourth Proportional to 139,874.00, 192,943.70 and 98,992.13
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Solution
The fourth proportional to 139,874.00, 192,943.70 and 98,992.13 is: 136,550.81
Step by Step Solution
- Step 1: Write the proportion equation
139,874.00 : 192,943.70 = 98,992.13 : x - Step 2: Convert to fraction form
139,874.00/192,943.70 = 98,992.13/x - Step 3: Cross multiply
139,874.00x = 192,943.70 × 98,992.13 - Step 4: Simplify right side
139,874.00x = 19,099,907,820.48 - Step 5: Solve for x
x = 19,099,907,820.48/139,874.00 - Step 6: Final answer
x = 136,550.81
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.